I think you said earlier that the "aliens" evolved on this planet. How long ago did this happen? What happened 8,000 to 13,000 years ago that caused their technological knowledge to vanish? If they've always been here, and are from here, why hide?

I think you said earlier that the "aliens" evolved on this planet. How long ago did this happen? What happened 8,000 to 13,000 years ago that cause their technological knowledge to vanish? If they've always been here, and are from here, why hide?

Quoting: SniperBob

no they are a "branch"or "fork" of lifeforms from several hundred million years ago.

knowledge vanishes pretty quickly, doesn't matter what level in one generation or even within one.

they came back recently. they aren't hidden. tptb knows who and where they are.